Singeing warping machine



July 30, 1929. r GRAVEL 1,722,910

SINGEING WARPING MACHTNE Filed March 19, 1925 6 Sheets-Sheet 1 Irwenar. flawed Gran/e6,

D. GRAVEL July 30, 1929.

S INGEING WARPING MACHINE Filed March l9, 1925 6 Sheets-Sheet 2 July 1929. GRAVE-L 1,722,910

S INGEING WARPING MACHINE Filed March 19, 1925 6 Sheets-Sheet 5 y 0 1929- D. GRAVEL v SINGEING WARPING MACHINE Filed March l9, 1925 6 Sheets-Sheet 4 D. GRAVE],

July 30, 1929.

S INGEING WARPING MACHINE esneets-s'heei 5 Irwehyrk flayed Gravel,

, Filed March 19, 1925 Patented July 30, 1929.

UNITED STATES PATENT OFFICE.

DAVID GRAVEL, OF CHATTANOOGA, TENNESSEE, ASSIGNOR TO STANDARD-(3008A- THATCHER COMPANY, OF CHATTANOOGA, TENNESSEE, A CORPORATION OF TEN- NESSEE.

SINGEING WARPING- MACHINE.

Application filed March 19, 1925. Serial No. 16,788.

My invention relates to singeing and warping machines, and it is an object of the invention to provide a machine of this character, by which satisfactory work may be done in spite of the necessary stops and starts due to broken yarns. In such operations as ordinarily conducted the operation of the burner is discontinued a little before the yarn travel ceases so as to avoid damage to the yarn, and is resumed a little after the travel of the yarn begins, for the same reason. As a result of this, there are spaces along the yarn several yards in length where the yarn is unsinged, or where the singeing or gassing is incomplete. My invcntion seeks to provide a machine free from these defects.

Another object of the invention is to provide effective locking means to prevent op eration of the burners until after the starting of the parts of the machine by which the yarn is caused to travel. I

Still another object is to provide improved stopping means operable by failure of a yarn.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts,

Figure 1 is a side elevation of a machine embodying my invention,

Figure 2 is a side elevation on a larger scale, of a part of the'mechanism shown in Figure 3 is a wiring diagram,

Figure 4, a side elevation at the opposite side of Fig. 2,

Figure 5, a longitudinal section of parts shown in Fig. 4, but with the parts in different position,

Figure 6, a side elevation of parts of the stop mechanism when the machine is in oporation,

Figure 7, a view similar to Fig. 6, showing the parts in intermediate position,

Figure 8, a view similar to Fig. 6, showing the parts in idle position after the ma chine has been stopped,

Figure 8, a section on line S8- of Fig.3, 1

Figure 9, an end elevation on an enlarged scale of a fragment of the gas distributing connections shown in Fig. 4,

Figure 10, a side elevation of the parts shown in Fig. 9, Figure 11, a plan view of the parts'shown in Figs. 9 and 10, and

Figure 12 is a plan view similar to 11, put showing the parts in a different posi- 1011. In the drawings, reference character 19 indicates a creel containing a plurality of cheeses 20 having yarns wound thereon, which cheeses are supported on spindles, the yarns being drawn off axially and passing through guides indicated at 21. From the guides 21 the yarns pass to a comb 22, thence over a bank of burners 23, a rod 24,a guide roller 25 of substantial size, back over a second bank of burners 26, over a large roller 27, a smaller roller 28 to a gathering device 29, and thence to a balling machine 30 driven by a motor 31. The motor is connected to the balling machine by a belt 32 operated by a belt shifting device 33 which shifting device is connected by a link 34 to a lever 72 connected to a foot lever 35 which is the control lever for the gassing and driving mechanism, and it is provided at its outer end (Figs. 4 and 5) with a counter weight 36 and a rod 37 mounted loosely in an opening in the counter weight. At the lower end of the rod is a head 38 and between the head and the weight is a spring 39 for cushioning the movement of the control lever in one direction. The other end of the lever 35 is provided with a foot tread to which is attached a link 40. This link is connected at its upper end to a vertical bar 41 which has a cam face 42 at its upper end. The bar is guided for vertical movement by brackets on the machine frame. A threearmed rocker is pivoted at 43 on the frame, the said rocker having a slotted arm with a pin 44 adjustably mounted in the slot, the pin 44 co-operating with the cam face 42 on the upper end of the bar 41 to move the rocker counter clockwise as shown in dotted lines in Fig. 2. The arm 45 extends rearwardly from the pivot of the rocker and is weighted to move the rocker clockwise into the full line position shown in Fig. 2. A

springpressed pin 46 is mounted for vertical sliding movement in the third arm of the rocker arm. lVhen the rocker arm is held in the position indicated in Fig. 2 by means of the bar 41, the pin 46 engages a notch in the upper side of a bar 47 which baris mounted to slide horizontally in guides on the machine frame. It will be obvious that the pin 46 engaging the notch in the upper side of the bar 47 prevents longitudinal movement of this bar when the control lever is in the idle position. The bar 47 (Fig. 2) is provided at its inner side with a guide lug 48 for a rod 49. A pair of springs 50 are supported on the rod 49 at opposite sides of the guide lug 48, each spring being supported between a lug and a buffer block 51, carried by the rod, said blocks abutting against the ends of the springs. \Vhenthe bar 47 is moved in either direction one of the abutting blocks 51 abuts against the frame 61 of the machine. It will be seen from consideration of Fig. 5 that longitudinal movement of the bar 47 in either direction will be cushioned by one of the springs 50. The bar 47 is moved endwise by a hand lever 52 fixed to a shaft 51, the hand lever being pivotally attached at 52 to a link 53 which latter is pivotally secured at one end to a bar and has a pivot 54 at its other end. The bar 55 is pivotally connected to a pair of rock arms 56 hereinafter described. The bar 57 above the bar 47 is connected to it by a link 58 pivoted at 54 to the link 53 and pivotally attached to the bar 57 at 58. The bar 57 is pivotally connected to a series of rock arms'59 similar to rock arms 56. It will be seen that the hand lever 52 and the bar 47 have extreme positions but no intermediate position, wherefore one or the other of the springs 50 will always be compressed as shown in Fig. 5 and will thus be of assistance in starting the movement of the hand lever and the parts connected thereto. The rock arms 56 and 59 are connected to the respective burners 26 and 23 by means of pipes 60 extending across the frame work 61 on which the gassing devices are supported. The means for supplying gas to these pipes as indicated in Figs. 4 and 9 to 12 consists of conventional piping including upright sections 62 leading to valves having casings 63 in which the pipes 60 are mounted to oscillate. Rotation of the burner supporting pipes from the position of Fig. 12 to that of Fig. 11 cuts off the flow of Pin 64 in the pipes limits the rotating movement of the pipe. A pilot light 65 is mounted in a rim 66 fixed to each pipe section 60 in such a way as to hold the pilot light always in alignment with burners 23. The pipe sections 67 are connected to oscillate with pipe sections 60 and at their outer ends are connected to globe valves 68, said valves being supported pivotally by valve stems 68 fixed to valve casing 63 in a manner so as to permit oscillation of each pipe section 67 with its section 60. he globe valves 68 are connected to the main supply pipes by pipes 69. The passages of such pipes to the pilot device being always open except as they may be interrupted by means of the hand operated valve 70. It will be evident from the foregoing description that the flame on the pilot burners will remain when the other burners are turned off, so that the gassing action may be resumed immediately on returning the burners to the working position where they will be at once relit by the pilot burners.

The elements of the stopping mechanism shown in Figs. 6 to 8 inclusive include a rock arm 71 mounted on a shaft 51. The rock arm 71 is connected to an arm 72 by means of a link 7 3. The arm 72 is fixed to the control lever 35. The end of the link 73 adjacent the arm 72 is slotted and is connected to the arm 72 by a pin which moves in this slot, whereby the rock arm 71 and the arm 72 may have considerable movement inclependent of each other but must move together after such independent movement. An object of this construction is to permit the weight 36 to have more effective action under certain circumstances. To the rock arm 72 also is attached the link 84 which operates the belt shifter 33 as previously described. A latch 74 is pivoted at 75 and this latch has a tooth 76 (Fig. 8) for engagement with the front face of the lateral projection 71 on the rock arm 71, whereby the rock arm is held in the position of Fig. 6 when the parts of the machine are in action. A detent 77 is also pivoted at 7 5, this detent having integral therewith or fixed thereto a weighted arm 7 8 carrying a pin 79 for disengaging thelatch 74 from the rock arm 71. A third arm 80 is made integral with or fixed to the arm 7 8 and the detent 77. The arm 80 is connected by a link 81 to the armature 82 of an electro-magnet 83 in a circuit 84 which circuit is always energized so that the armature is always attracted to the electro-magnet and tends to hold the parts in the position of Fig. 6, the weight of the weighted arm 78 being so great however that it will overcome the effect of the electro-magnet when the detent 77 is released. Another electro-magnet 85 is connected in a circuit normally open and indicated at 86 (Fig. 8). An armature is provided at- 90 for the electro-magnet S5, and this armature is carried by a pivoted trigger arm 91. An arm 92 in which the armature 82 is supported is pivoted coincidently with arm 91, the arm 92 being provided with a pair of fingers between which the end of the arm 91 extends. The detent 77 engages a notch in the lower edge of the trigger 91 by which it is held. The permanent magnet 83 is not strong enough to support the arm 78 alone but co-operates with the detent arm 77 to support this arm. The magnet 83 tending to hold up the arm 78 relieves the detent from having to sustain the whole weight of the arm 78. If the full weight of the arm 78 were supported on the detent 77 it would require a stronger pull to lift the trigger arm 91. It is desired that this arm be released with only a slight pull by the magnet 85.

Fig. 3 shows one of a series of wooden uprights 94 which I purpose to place in the creel at suitable intervals. Each post-has a pair of wires 95 embedded in one face which are exposed at one or more gaps 96 for engage ment by the bent outer end 97 of the lower arm 98 of a pivoted detector having an arm 99 resting on the yarn at a point where it is supported by the bracket bearing the guide 21. In cases where my devices are applied to a warp, each yarn in the creel has a detector arran ed to fall and close a gap in which the circuit in the magnet 85 is closed. An annunciator 100 is located at a convenient point on the creel and serves to indicate approximately which yarn is broken.

The operation of the device is as follows A switch 101 serves to close the circuit to an eiectro-magnet 85 (Figs. 3 and 6) so that a fallen detector completes the circuit and causes the magnet 85 to be energized. Thereupon armature 90 is raised releasing detent 77 which permits weighted lever 78 to drop and to pull down armature 82 at the same time releasing latch 74 and rock arm 71. The arm 71 is then free to swing to the right, being so swung by means of the Weight 36 on the control lever and the arm 72 to the position shown in Fig. 8. As the parts assume the position shown in Fig. 8 the switch 101 is opened while the arm 71 lifts the lever 78 by means of the abutment 71 sliding along the lower faces of the latc-h'74 and the lever 7 S, and the armature 82 is moved to the position to be held by magnet 83. The detent 7 7 is also moved into the position shown in Fig. 8. The control lever 35 is still in the full line position shown in Fig. 8, but may be moved in counter clockwise direction by the operator without affecting the other parts by reason of the pin and slot connection between arm 72 and link 7 3, thus returning rock arm 72 to re-set position and closing the switch 101. Before the control lever 35 is returned to the position shown in Fig. 6, the broken yarn should be tied and the fallen detector replaced on the reunited yarn. As the control lever 35 is rotated to the position shown in Fig. 7 the rock arm 71 returns to the position shown in Figure 6 and the device is in the re-set position for a gassing operation. The circuit of electro-magnet 85 being broken by the raising of the fallen detector the magnet will not be energized on the closing of the circuit at 101, and so trigger arm 91 will remain in position to hold detent 77 in the position of Fig. 8. \Vhen the arm 71 has moved counter clockwise the shaft 51 and the hand lever 52 move with it from the position of Fig. 5 to that of Figs. 2 and 4, thus moving the bar 47 to the left in Fig. 2, and swinging the burners down so as to turn off the gas. At such a time with the treadle in the position of Fig. 8 the bar 41 is in the raised position of Fig. 2 and has turned the three-armed lever 43 against the resistance of its weighted arm 45 so as to cause pin 46 to engage in the notch in the bar 47 locking the bar against return move ment and locking the burners out of operation. After the broken yarn has been repaired the treadle is returned to the dotted line position in Fig. 8. The hand lever 52 will be returned from the position of Figs. 2 and at to that of Fig. 5, thus moving the bar 47 to the right in Fig. 2 and bringing the burners back into operative relation with the yarn. The hand lever 52 is rigidly secured to the shaft 51. It is therefore moved by the arm 71 as thatarm is.m0ved back from the position of Fig. 8 to that of Fig. 6. The magnet 83 being permanently energized will tend to hold the armature 82 in the position clearly shown in Figs. 6 and 8 relieving the weight on the detent 77 and consequently the parts and 78 will remain in the position of Fig. 6 until another yarn failure occurs. The parts are locked in this position by engagement of latch 7a with the abutment 71 on the rock arm -71 and by detent 77 in engagement with the arm 91.

It will be obvious to those skilled in the art that various changes may be made in our device without departing from the spirit of the invention, and we, therefore, do not limit ourselves to what is shown in the drawings and described in the specification, but only as set forth in the appended claims.

It will also be obvious that the machine of my invention is not limited in use to the singeing of yarns, since various other yarn finishing and yarn handling operations may be carried on thereby, or by the use of features of the machine. Furthermore fabric such as cloth or paper or other continuous strip or strand material may be treated in various ways by the use of features of my invention, the term yarns being used in the claims for convenience and not for limitation.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. A gassing device for yarns including a valve casing a pipe section coaxial with a oscillate relatively thereto for turning the All gas on and off, burners on the pipe section, a pilot burner fixed in relation to the other burners, and an auxiliary pipe section leading to said pilot burner, substantially as set forth.

2. A gassing device for yarns including a valve casing, a pipe section coaxial with a part of the said valve casin adapted to oscillate relatively thereto for turning the on and elf, burners on the pipe section, a pilot burner fixed in relation to the other burners, and an auxiliary pipe section leading to said pilot burner, said auxiliary pipe section oscillating with said first named pipe section and having a part coaxial therewith, substantially as set forth.

3. In a gassing device means for causing a set of yarns to travel together, a set OIl' burners adjacent thereto, electrical stopping means including a constantly closed circuit, a normally open circuit, a control lever biased to move in a direction to stop the machine, means operated by r l control lever for stopping travel of the yarn, means for holding thesaid control lever in a position to allow the machine to operate, means operated by the first circuit for co-operation with the last named means to hold the con trol lever in position for operation of the machine, means controlled by the second circuit for releasing the control lever, and means for closing the second circuit on failure of a yarn, substantially set forth.-

4. In a gassing device means for causing a set of yarns to travel together, a set of burners adjacent thereto, electrical. stopping means including a constantly closed circuit, a normally open circuit, a control lever biased to move in a direction to stop the machine, means operated by said control lever for stopping travel of the yarn, means for holding the said control lever in a position to allow the machine to operate, means operated by the first circuit for cooperation with the last named means to hold the control lever in position for operation of the machine, means controlled by the second circuit for releasing the control lever, means for closing the second circuiton failure of a yarn, and means for breaking the second circuit after release of the control lever, substantially as set forth.

5. In a gassing machine means for causing a set of yarns to travel together, a set of burners adjacent thereto, electrical stopping means, including a constantly closed circuit, a normally open circuit, a control lever biased to move in a direction to stop the machine, means operated by said control lever for stopping travel of the yarn, means for holding the said control lever in a position to allow the machine to operate, an electro-magnet in the first circuit, an armature therefor, gravity actuated means tending to move said armature away from the magnet, an electro-magnet in the second circuit, an armature therefor, a trigger arm controlled by said last named armature, the said trigger arm operating to hold the gravity actuated means inelevated position, means for closing the second circuit on failure of a yarn, thereby energizing the electro-magnet in the second circuit to lift the second armature to allow the gravity oper ated means to disengage the means for holding the control lever in operative position, substantially as set forth.

6. In a gassing device means for causing a set of yarns to travel together, a set of burners adjacent thereto, electrical stopping means including a constantly closed circuit,

a normally open circuit, a control lever biased to move in a direction to stop the machine, means operated by said control lever for stopping travel of the yarn, means for holding the said control lever in a position to allow the machine to operate, an electro-magnet in the first circuit, an armature therefor, means controlled by said armature for cooperation with the last named means to assist in holding the control lever in active position said means including a rock arm, a latch for the rock arm, gravity controlled means for releasing the latch to release the control lever said means also tending to free said armature from its magnet, an electromagnet in the second circuit, an armature normally preventing operation of said gravity controlled means, and means for energizing the second circuit on failure of a yarn, thereby energizing its electro-magnet to lift the second armature, said control lever on its way to idle position causing said rock arm to restore the first armature to the field of attraction of its magnet, substantially as set forth.

7. A yarn treating device, comprising 'singeing means, independent detectors for the yarn, a circuit adapted to be closed by a fallen detector, a normally de-energized electro-magnet in the circuit, an armature therefor, a normally energized electromagnet, an armature therefor, a weight adapted to pull the second armature from its magnet, a trigger controlled by the first named armature, a detent held by said trigger in position to prevent operation of said weight, part of the load of this weight being borne by the normally energized electro-magnet, a control lever, a latch therefor, means operated by said weight to release the latch, a switch in the circuit of the first electromagnet, and connections from the switch to a control lever whereby said circuit which is closed by the fallen detector is again broken by the control lever in stopping the machine, substantially as set forth.

8. A gassing device comprising a bank of burners, means to guide a sheet of yarns or the like over said burners, means whereby the burners may be turned about an axis extending transversely of said sheet to remove them from proximity to the yarn and at the same time to cut off the flow of fuel from them, means for starting the flow of gas as the burners are returned to position under the yarns, and means for simultaneously relighting the gas, substantially as set forth.

9. A singeing warping machine, comprising means for guiding a series of yarns, a row of burners underneath said yarns, a slide connected to a bank of such rows, means tending to oscillate the burners out of operative relation to the yarns, a rock shaft, an arm on the rock shaft connected to said slide, a latch acting on the rock shaft for holding the burners in operative position means operative upon release of the latch for moving the said arm to move the burners to inoperative position and simultaneously to cut off the supply of fuel to the burners, and means for releasing the latch on failure of a yarn, substantially as set forth.

10. A singeing warping machine, comprising means for guiding a series of yarns, a row of burners underneath said yarns, a slide connected to a bank of such rows, means tending to move the slide to oscillate the burners out of operative relation to the yarns, a rock shaft, an arm on the rock shaft connected to said slide, a latch acting on the rock shaft for holding the burners in operative position, means for releasing the latch on failure of a yarn to permit the burners to be moved to inoperative position, and means for restoring the parts to operative position, substantially as set forth,

11. A singeing warping machine comprising means for guiding a series of yarns, a row of burners adjacent said yarns, a slide connected to a bank of such rows, a rock shaft, an arm on the rock shaft connected to said slide, a latch acting on the rock shaft for holding the burners in operative position, means tending to move the said arm to move the burners away from the yarns detectors coacting with said yarns and a circuit closed by the movement of a detector, said circuit-releasing said latch to permit the burners to be moved away from the yarn, substantially as set forth.

A singeing warping machine, comprising means for guiding a series of yarns, a row of burners underneath said yarns, a slide connected to a bank of such rows, a rock shaft, an arm on the rock shaft connected to said slide, means tending to move the arm to rotate the burners away from the yarns and to shut off the supply of fuel to the burners a latch acting on the rock shaft for holding the burners in operative position, detectors on said yarns, a circuit closed by the fall of a detector, said circuit disabling said latch to permit the burners to be rotated away from the yarn, means for breaking the circuit when the burners are out of operation, and a treadle serving first to restore said circuit and then to permit the burners to move to operative position, substantially as set forth.

13. A singeing warping machine, compris ing means for guiding a series of yarns, a row of burners underneath said series, means tending to. oscillate the burners out of operative relation to the yarns, a latch for holding the burners in operative position, detectors coacting with said yarns, and a circuit closed by the movement of a detector, said circuit releasing said latch to permit the burners to move to inoperative position, substantially as set forth.

14. In combination, means for moving yarns in the direction of their length, a control lever for said means, means for biasing the control lever to move in a direction to stop the yarn travel, a latch restraining the lever against such movement, means tending to disengage the latch and said lever, a trigger arm engaging said last named means to prevent such disengagement, an electromagnet for lifting said trigger arm, means for energizing said electro-magnet on failure of a yarn, an arm pivoted coincidentally with the trigger arm, connections from said arm to the latch moving means, electro-magnetic means tending to hold the last named arm in elevated position, and means operated by the control lever for lifting said last named arm, the last named electro-magnetic means tending to relieve the load on the said trigger arm in supporting the last named arm with its weight in elevated position, substantially as set forth.

15. In combination, means for moving yarns in the direction of their length, a control lever for said means, means for biasing the control lever to move in a direction to stop the yarn travel, a latch restraining the lever against such movement, a weighted arm tending to disengage the said latch and said lever, a trigger arm engaging a detent on said Weighted arm to prevent such dis engagement, means for lifting the said trig ger arm on yarn failure, a second arm, means tending to hold said second arm in elevated position, connections between said Weighted arm and said second arm, said second arm assisting the said trigger arm in supporting the said weighted arm, and means operated by the control lever for resetting said weighted arm and returning said second arm to elevated position, substantially as set forth.

16. In combination, means for moving yarns in the direction of their length, a control lever for said means for ii, 3

the control lever to move in a direction to stop the yarn travel, a detent restraining the lever against such movement, means to release the detent on yarn failure, and means operated by the control lever in its stopping movement for resetting said detent, substantially as set forth.

17. In combination, means for moving yarns in the direction of their length, a control lever for said means, means for biasing the control lever to move in a direction to stop the yarn travel, a latch restraining the lever against such movement, impact means to release the latch on yarn failure, a trigger for holding the impact means in set position, and means operated by the control lever for moving the impact means to position to be ltield1 by the trigger arm, substantially as set ort 1.

18. In combination, means for moving yarns in the direction of their length, a control lever for said means, means for biasing the control lever to move in a direction to stop the yarn travel, a latch restraining the lever against such movement, impact means for releasing the latch, a detent'on said imact means, a trigger arm for engaging said detent for holding he impact means out of action, means to Withdraw the trigger arm on yarn failure, and means operable by the control lever for moving the detent for en gagement by the said trigger arm, substantially as set forth.

In Witness whereof, I have hereunto set my hand at Chattanooga, Tennessee, this 6th day of March, A. D. nineteen hundred and twenty-five. 4

DAVID GBAVEL. 

